.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.navbar {
  background: #fff;
  padding: 1rem 2rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand h1 {
  color: #42b983;
  font-size: 1.5rem;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  text-decoration: none;
  color: #333;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: #42b983;
}

.main-content {
  flex: 1;
  padding: 2rem;
}

.page {
  max-width: 1200px;
  margin: 0 auto;
}

.page h1 {
  color: #2c3e50;
  margin-bottom: 1rem;
}

.page p {
  color: #666;
  line-height: 1.6;
  margin-bottom: 1rem;
}

.demo-section {
  background: #fff;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  margin: 2rem 0;
}

.demo-button {
  background: #42b983;
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  transition: background-color 0.3s;
}

.demo-button:hover {
  background: #369870;
}

.features {
  background: #fff;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.features ul {
  list-style: none;
  padding-left: 0;
}

.features li {
  padding: 0.5rem 0;
  color: #666;
}

.features li::before {
  content: "✓ ";
  color: #42b983;
  font-weight: bold;
}

.content-section {
  background: #fff;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  margin: 1rem 0;
}

.content-section h2,
.content-section h3 {
  color: #2c3e50;
  margin-bottom: 1rem;
}

.content-section ul {
  list-style: none;
  padding-left: 0;
}

.content-section li {
  padding: 0.5rem 0;
  color: #666;
}

.content-section li::before {
  content: "• ";
  color: #42b983;
  font-weight: bold;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.product-card {
  background: #fff;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s;
}

.product-card:hover {
  transform: translateY(-2px);
}

.product-card h3 {
  color: #2c3e50;
  margin-bottom: 0.5rem;
}

.price {
  font-size: 1.5rem;
  color: #42b983;
  font-weight: bold;
  margin: 0.5rem 0;
}

.buy-button {
  background: #42b983;
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  cursor: pointer;
  width: 100%;
  margin-top: 1rem;
}

.buy-button:hover {
  background: #369870;
}

.loading {
  text-align: center;
  padding: 2rem;
  color: #666;
  font-size: 1.2rem;
}

.contact-form {
  background: #fff;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  max-width: 600px;
  margin: 2rem 0;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: #333;
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #42b983;
}

.submit-button {
  background: #42b983;
  color: white;
  border: none;
  padding: 0.75rem 2rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
}

.submit-button:hover {
  background: #369870;
}

.contact-info {
  background: #fff;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  margin-top: 2rem;
}

.contact-info h2 {
  color: #2c3e50;
  margin-bottom: 1rem;
}

.contact-info p {
  margin: 0.5rem 0;
  color: #666;
}

.heavy-component {
  background: #f8f9fa;
  padding: 2rem;
  border-radius: 8px;
  margin: 2rem 0;
}

.counter-section {
  margin: 1rem 0;
}

.counter-section button {
  background: #42b983;
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  margin: 0 0.5rem;
  border-radius: 4px;
  cursor: pointer;
}

.scrollable-list {
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid #ddd;
  border-radius: 4px;
  padding: 1rem;
  background: white;
}

.list-item {
  padding: 0.25rem 0;
  border-bottom: 1px solid #eee;
}

.image-section {
  margin-top: 2rem;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.image-placeholder {
  aspect-ratio: 1;
  background: #f0f0f0;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.placeholder-content {
  color: #666;
  font-size: 0.8rem;
}